Test failure: MONO_WASM: Failed to fetch dynamically imported module

[sbomer]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1392159
Build error leg or test failing: baseservices-exceptions.MergedTestAssembly.0.1.WorkItemExecution
Pull request: #127302

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "MONO_WASM: Failed to fetch dynamically imported module",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Likely same as #127424, but I'm seeing a slightly different error message.

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1392159
Error message validated: [MONO_WASM: Failed to fetch dynamically imported module]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 4/28/2026 5:32:53 PM UTC

[sbomer]

Duplicate of #127257